Chemistry Olympic Contest And Chemical Teaching In Middle School

Part one: Chemistry Olympic contest is a kind of chemical intelligence contest that has been spread all over the world. It appeared in China in 1984, and by now it has formed the pattern of multiple levels and multiple distinctions, which ranges from junior middle school to senior high school and from district to all the country.The basic springboard of Chinese chemistry contest is to promote the middle school quality education. The idea of assigning questions is based on the natural growing point of chemistry content and combining point of middle school chemistry teaching and college chemistry teaching. While attaching importance to the function of selection, the idea also lays stress on the checking of the student' ability, the inspiring of the students' interesting of learning chemistry, the promoting of teaching reform in middle school, the boosting of chemistry teachers quality and the teaching quality in middle school, the cultivating of high quality intellects that face the 21st century.Through the analysis of the recent five years test questions of preliminary contest and final contest of Chinese chemistry contest, it is concluded that the contest plays a role of directing the middle school chemistry teaching and keeps close relationship with the chemical quality education. The contest questions originate from the contest outline but are not limited by the outline. While contacting real life as well as the scientific frontier, the questions are also regarded as highly the colligation and penetration of multiple science branches. The contest questions relate to the fundamental knowledge and the new knowledge, new technology and new scientific fields. Through the analysis of contest experimental test questions from 1995 to 2003, it is found that metage, synthesis, standardization and determination are the characteristics of these years' experimental test questions. Chemistry experiment is based on the elementary knowledge, especially checking the usage of suction pipet and buret. The core of questions lies on the basic operation of metage, dissolution, suction, refluxing, filter, wash and titration.From the angles of contest and education, the paper discusses the relationship of contest and quality education. It is concluded that chemistry contest is a kind of midst chemistry, it embodies the quality education deeply. So the contest can be called the model reform of class teaching. The contest not only inspires the chemistry teacher's enthusiasm of renewing theirknowledge, but also intensifies orientation of the ability cultivation in practice of teaching. The contest adds vivid chemistry content to the "second class".Part two: In order to comprehend the advanced situation of chemistry, the author also took part in the chemical experimental research. Contact glow discharge electrolysis is a novel type of electrochemical process. The degradation of nitrobenzene, p-chloronitrobenzene and chloroanilines in aqueous solution were investigated by means of contact glow discharge electrolysis. The reaction pathways were proposed as follows: firstly, hydroxylation of aromatic ring, then ring cleavage forming dicarboxylic acid and eventually oxidation to inorganic carbon. So we can apply this method to treat the wastewater polluted by organic compounds. Moreover, it can be expected to treat toxic compounds in solution by using this technique.